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Tạp chí khoa học ĐHCT
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Tạp chí quốc tế 2020
Số tạp chí 991(2020) Trang:
Tạp chí: IOP Conference Series: Materials Science and Engineering

Tea is considered to be a product that brings health benefits. The drying process showed high efficiency in processing this product. However, the process of moisture is not qdequately controlled, resulting in wasted energy in the drying process. The dynamics of the drying process of soursop leaves and the effect of temperature on the process speed were assessed in the present study. Five models (Newton, Henderson and Pabis, Page, Logarithmic, and Weibull) were used to determine the suitable drying dynamic at temperatures of 50°C, 55°C, 60°C and 65°C. The mechanism of the processing is based on the principle of dehumidification of the convection drying system with hot air, which caused the moisture inside the material to move outwards. The results showed that the drying temperature is directly proportional to the drying rate of the process, as the increase in drying temperaturefrom 50°C to 65°C produced the link breaking energy and heating thatleads to evaporation. Dehumidification rate depends on the temperature, change in Deff value as 1 x (RTa) -1 from from 9,264 95 × 10−9 m/s2 to 9.76485 × 10−9 m/s2 . Page model with determination coefficient R2> 0.99 was found to be the most suitable model for experimental data.

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Số tạp chí 5(2020) Trang: 84-89
Tạp chí: International Journal of Research and Innovation in Applied Science (IJRIAS)
Số tạp chí 991(2020) Trang:
Tạp chí: IOP Conference Series: Materials Science and Engineering


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